On Fri, 30 Nov 2007 16:36:16 -0500, wrote:

On Fri, 30 Nov 2007 13:21:32 -0800, Oren wrote:

On Fri, 30 Nov 2007 15:20:29 -0500, wrote:

On Fri, 30 Nov 2007 09:27:50 -0800 (PST), John
wrote:

Hello

My Sears 1000 XLT tractor is driving absloulutely nuts . The pulley
that drives the left side blade keeps stripping. The pulley is
attached to it's shaft with a star connection.

Is this a spline shaft?

Isn't a pulley pressed onto these spline (star) shafts?

I don't know how these pulleys are attached. It sounds like
either a sliding spline connection or a press fit spline like you say?
Either way the metallurgy involved may be the problem.

Failure at the shaft/pressed pulley...SWAG.

Before replacing several and waiting to solve the problem - I would
spot weld the first failure (if, applicable).